create-0.0.3
Forge 28.0.14
https://gist.githubusercontent.com/mdylantk/a75f52062ad4b9ee3985c658f6999529/raw/58f5c3b21cb53536e0c2528394d9db5a56c7af64/crash-2019-07-25_07.44.13-server.txt

crash-2019-07-25_07.44.13-server.txt (This is here in case the link fails, sorry)

It appears forge moved the ServerWorld class to a different package.
I will try to support the new game version with the next beta release.
Thanks again, I appreciate the testing.

Create 0.0.4 is live and tested with Minecraft 1.14.4
If you encounter any further Issues, feel free to reach out again, cheers!~